Hard-wired controls (VPS)
whose program is specified by the type of functional elements and their connections (DIN 19 237). With hard-wired controls, application-specific logical connections are made by individual pipeline connections
Piston seal
Seal at the piston for a cylinder . With single-acting cylinders ( plunger ), the piston is only subjected to pressure on one side so only needs sealing in one direction in most cases. For hydraulic cylinders
Algorithm
estimated values in steps and Recursive algorithms that recalculate the estimated values during each step with the inclusion of a new measured value set while using information from the previous steps. They are
Impressed pressure
pressure system " often used is not correct here, as the pressure does not remain constant. The system with impressed pressure is also termed a "(constant) pressure source".
Suction throttle control
the medium all influence the delivery characteristic of a suction throttle pump. Suction orifices with adjustable cross sections are used to regulate the suction throttle. In the case of compressors, the
Electromagnetic compatibility
addressed by means of suitable measures, that is by screening these components. For this purpose materials with high permeability are used. The most widespread method is screening cables that carry signals. Here
Starting performance of hydraulic motors
of the starting jerk (= speed jump) and the lowest rotation speed (slow running behaviour). Along with the installation-related causes of friction (hydromechanical efficiency) these parameters depend on
Status monitors
that end, a mathematical model of the drive in the form of a master loop is developed and recreated with the aid of a permanently running simulation. Equally, this model makes corrections if differences
Water hydraulics
be used. This statement applies above all to gap seals that produce excessively high leakage losses with pressurised water. For this reason valve plate-controlled pumps must be replaced by valve-controlled
Pipe capacity
equivalent bulk modulus K’ ( bulk modulus ) concerns these characteristics in respect of a pipe filled with oil. If the enclosed oil volume under pressure is represented by the letter V, the pipe capacity may